stem.org.uk Website Information
Daily Unique Visits: 119,380
Daily Page Views: 716,280
Income Per Day: $1,433
Estimated Value: $1,031,760
This website is located in Ireland and is using following IP address 34.251.83.23. See the complete list of popular websites hosted in Ireland.
stem.org.uk is registered under .UK top-level domain. Please check other sites in .UK zone.
Website stem.org.uk is using the following name servers:
- charm.ns.slcs.ac.uk
- strange.ns.slcs.ac.uk
- ns4.ja.net
and is probably hosted by AMAZON-02 - Amazon.com, Inc., US. See the full list of other websites hosted by AMAZON-02 - Amazon.com, Inc., US.
The highest website stem.org.uk position in Alexa rank database was 10950 and the lowest rank position was 12074. Current position of stem.org.uk in Alexa rank database is 12014.
Desktop speed score of stem.org.uk (71/100) is better than the results of 52.66% of other sites and shows that the page desktop performance can be improved.
Mobile usability score of stem.org.uk (99/100) is better than the results of 79.46% of other sites and means that the page is mobile-friendly.
Mobile speed score of stem.org.uk (59/100) is better than the results of 52.41% of other sites and shows that the landing page performance on mobile devices is poor and can be improved.
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stem.org.uk Alexa Rank
The traffic rank is based on three months of aggregated historical traffic data from millions of Alexa Toolbar users and is a combined measure of page views and users.
stem.org.uk whois
WHOIS gives you the ability to lookup any generic domains to find out the registered domain holder. WHOIS database are provided for information purposes only. It allows the public to check whether a specific domain name is still available or not and to obtain information related to the registration records of existing domain names.
Domain name:
stem.org.uk
Data validation:
Nominet was able to match the registrant's name and address against a 3rd party data source on 10-Dec-2012
Registrar:
STEM Learning Limited t/a National STEM Learning Centre [Tag = MYSCIENCE]
URL: https://www.stem.org.uk
Relevant dates:
Registered on: 01-Aug-2007
Expiry date: 01-Aug-2023
Last updated: 18-Jul-2021
Registration status:
Registered until expiry date.
Name servers:
charm.ns.slcs.ac.uk
ns4.ja.net
strange.ns.slcs.ac.uk
WHOIS lookup made at 00:42:42 02-May-2022
--
This WHOIS information is provided for free by Nominet UK the central registry
for .uk domain names. This information and the .uk WHOIS are:
Copyright Nominet UK 1996 - 2022.
You may not access the .uk WHOIS or use any data from it except as permitted
by the terms of use available in full at https://www.nominet.uk/whoisterms,
which includes restrictions on: (A) use of the data for advertising, or its
repackaging, recompilation, redistribution or reuse (B) obscuring, removing
or hiding any or all of this notice and (C) exceeding query rate or volume
limits. The data is provided on an 'as-is' basis and may lag behind the
register. Access may be withdrawn or restricted at any time.
stem.org.uk
Data validation:
Nominet was able to match the registrant's name and address against a 3rd party data source on 10-Dec-2012
Registrar:
STEM Learning Limited t/a National STEM Learning Centre [Tag = MYSCIENCE]
URL: https://www.stem.org.uk
Relevant dates:
Registered on: 01-Aug-2007
Expiry date: 01-Aug-2023
Last updated: 18-Jul-2021
Registration status:
Registered until expiry date.
Name servers:
charm.ns.slcs.ac.uk
ns4.ja.net
strange.ns.slcs.ac.uk
WHOIS lookup made at 00:42:42 02-May-2022
--
This WHOIS information is provided for free by Nominet UK the central registry
for .uk domain names. This information and the .uk WHOIS are:
Copyright Nominet UK 1996 - 2022.
You may not access the .uk WHOIS or use any data from it except as permitted
by the terms of use available in full at https://www.nominet.uk/whoisterms,
which includes restrictions on: (A) use of the data for advertising, or its
repackaging, recompilation, redistribution or reuse (B) obscuring, removing
or hiding any or all of this notice and (C) exceeding query rate or volume
limits. The data is provided on an 'as-is' basis and may lag behind the
register. Access may be withdrawn or restricted at any time.
stem.org.uk server information
Servers Location
stem.org.uk desktop page speed rank
Last tested: 2019-02-01
Desktop Speed
Medium
71/100
stem.org.uk Desktop Speed Test Quick Summary
priority - 26Optimize images
Properly formatting and compressing images can save many bytes of data.
Optimize the following images to reduce their size by 257.1KiB (78% reduction).
Compressing and resizing https://www.stem.org.uk/sites/default/files/slider…earning%20Centre_0.jpg could save 63.5KiB (92% reduction).
Compressing and resizing https://www.stem.org.uk/sites/default/files/slider…on%20Award%20final.jpg could save 59.8KiB (92% reduction).
Compressing https://www.stem.org.uk/sites/default/files/slider…Science%20Teaching.jpg could save 44.1KiB (78% reduction).
Compressing and resizing https://www.stem.org.uk/sites/default/files/slider…ssion%20X%20mascot.jpg could save 39.9KiB (89% reduction).
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Compressing and resizing https://www.stem.org.uk/sites/default/files/fielda…_325px-wide-resour.gif could save 4.4KiB (38% reduction).
Compressing and resizing https://www.stem.org.uk/sites/default/files/fielda…25px-wide-search_1.gif could save 4.2KiB (32% reduction).
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Compressing and resizing https://www.stem.org.uk/sites/default/files/slider…on%20Award%20final.jpg could save 59.8KiB (92% reduction).
Compressing https://www.stem.org.uk/sites/default/files/slider…Science%20Teaching.jpg could save 44.1KiB (78% reduction).
Compressing and resizing https://www.stem.org.uk/sites/default/files/slider…ssion%20X%20mascot.jpg could save 39.9KiB (89% reduction).
Compressing https://www.stem.org.uk/sites/default/files/slider…k%202019%20%285%29.jpg could save 33.3KiB (78% reduction).
Compressing and resizing https://www.stem.org.uk/sites/default/files/fielda…_325px-wide-resour.gif could save 4.4KiB (38% reduction).
Compressing and resizing https://www.stem.org.uk/sites/default/files/fielda…25px-wide-search_1.gif could save 4.2KiB (32% reduction).
Compressing and resizing https://www.stem.org.uk/sites/default/files/fielda…_325px-wide-bursar.gif could save 4.2KiB (33% reduction).
Compressing and resizing https://www.stem.org.uk/sites/default/files/fielda…ONS_325px-wide-CPD.gif could save 1.9KiB (34% reduction).
Compressing and resizing https://www.stem.org.uk/sites/default/files/fielda…_325px-wide-workin.gif could save 1.9KiB (26% reduction).
priority - 8Eliminate render-blocking JavaScript and CSS in above-the-fold content
Your page has 7 blocking script resources and 4 blocking CSS resources. This causes a delay in rendering your page.
Remove render-blocking JavaScript:
https://www.stem.org.uk/sites/default/files/js/js_…t7Is3CRaFcqWuXJaFrM.js
https://www.stem.org.uk/sites/default/files/js/js_…7R_wG2apAswJoCUZY7I.js
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https://www.stem.org.uk/sites/default/files/js/js_…ipL5VNAhLGSzbSWU5vo.js
https://www.stem.org.uk/sites/default/files/js/js_…_SurTijPI0bx4kZ2rjE.js
https://www.stem.org.uk/sites/all/themes/custom/st…/libs/modernizr.min.js
https://www.stem.org.uk/sites/default/files/js/js_…BVSDPchQfBQIa3FTQ4M.js
https://www.stem.org.uk/sites/default/files/js/js_…7R_wG2apAswJoCUZY7I.js
https://www.stem.org.uk/sites/default/files/js/js_…a3vd5eTo5xEO7dvCUZM.js
https://www.stem.org.uk/sites/default/files/js/js_…ipL5VNAhLGSzbSWU5vo.js
https://www.stem.org.uk/sites/default/files/js/js_…_SurTijPI0bx4kZ2rjE.js
https://www.stem.org.uk/sites/all/themes/custom/st…/libs/modernizr.min.js
https://www.stem.org.uk/sites/default/files/js/js_…BVSDPchQfBQIa3FTQ4M.js
Optimize CSS Delivery of the following:
https://www.stem.org.uk/sites/default/files/css/cs…Ai0WEMuCnI0ZkYIaFw.css
https://www.stem.org.uk/sites/default/files/css/cs…sbzVUzDjtIPkNTtqGU.css
https://www.stem.org.uk/sites/default/files/css/cs…8n86ON_A83nNbM2EYM.css
https://www.stem.org.uk/sites/default/files/css/cs…Ul9yU8UvqX7TUntjmE.css
https://www.stem.org.uk/sites/default/files/css/cs…sbzVUzDjtIPkNTtqGU.css
https://www.stem.org.uk/sites/default/files/css/cs…8n86ON_A83nNbM2EYM.css
https://www.stem.org.uk/sites/default/files/css/cs…Ul9yU8UvqX7TUntjmE.css
priority - 2Prioritize visible content
Your page requires additional network round trips to render the above-the-fold content. For best performance, reduce the amount of HTML needed to render above-the-fold content.
The entire HTML response was not sufficient to render the above-the-fold content. This usually indicates that additional resources, loaded after HTML parsing, were required to render above-the-fold content. Prioritize visible content that is needed for rendering above-the-fold by including it directly in the HTML response.
Only about 60% of the final above-the-fold content could be rendered with the full HTML response.
Click to see the screenshot with only the HTML response:
priority - 2Leverage browser caching
Setting an expiry date or a maximum age in the HTTP headers for static resources instructs the browser to load previously downloaded resources from local disk rather than over the network.
Leverage browser caching for the following cacheable resources:
https://www.stem.org.uk/sites/all/themes/custom/st…ts/fonts/Bliss2Bd.woff (expiration not specified)
https://www.stem.org.uk/sites/all/themes/custom/st…ts/fonts/Bliss2Lt.woff (expiration not specified)
https://www.stem.org.uk/sites/all/themes/custom/st…ts/fonts/Bliss2Rg.woff (expiration not specified)
https://www.google-analytics.com/analytics.js (2 hours)
https://www.stem.org.uk/sites/all/themes/custom/st…ts/fonts/Bliss2Lt.woff (expiration not specified)
https://www.stem.org.uk/sites/all/themes/custom/st…ts/fonts/Bliss2Rg.woff (expiration not specified)
https://www.google-analytics.com/analytics.js (2 hours)
priority - 1Minify JavaScript
Compacting JavaScript code can save many bytes of data and speed up downloading, parsing, and execution time.
Minify JavaScript for the following resources to reduce their size by 12.4KiB (22% reduction).
Minifying https://www.stem.org.uk/sites/default/files/js/js_…t7Is3CRaFcqWuXJaFrM.js could save 5.2KiB (14% reduction) after compression.
Minifying https://www.stem.org.uk/sites/default/files/js/js_…BVSDPchQfBQIa3FTQ4M.js could save 4.7KiB (36% reduction) after compression.
Minifying https://www.stem.org.uk/sites/default/files/js/js_…ipL5VNAhLGSzbSWU5vo.js could save 1.6KiB (44% reduction) after compression.
Minifying https://www.stem.org.uk/sites/default/files/js/js_…7R_wG2apAswJoCUZY7I.js could save 936B (69% reduction) after compression.
Minifying https://www.stem.org.uk/sites/default/files/js/js_…BVSDPchQfBQIa3FTQ4M.js could save 4.7KiB (36% reduction) after compression.
Minifying https://www.stem.org.uk/sites/default/files/js/js_…ipL5VNAhLGSzbSWU5vo.js could save 1.6KiB (44% reduction) after compression.
Minifying https://www.stem.org.uk/sites/default/files/js/js_…7R_wG2apAswJoCUZY7I.js could save 936B (69% reduction) after compression.
priority - 0Enable compression
Compressing resources with gzip or deflate can reduce the number of bytes sent over the network.
Enable compression for the following resources to reduce their transfer size by 943B (40% reduction).
Compressing https://www.stem.org.uk/sites/all/themes/custom/st…ocial-facebook-rev.svg could save 388B (45% reduction).
Compressing https://www.stem.org.uk/sites/all/themes/custom/st…te/icon-arrow-down.svg could save 221B (37% reduction).
Compressing https://www.stem.org.uk/sites/all/themes/custom/st…con-arrow-right-bg.svg could save 201B (39% reduction).
Compressing https://www.stem.org.uk/sites/default/files/js/js_…a3vd5eTo5xEO7dvCUZM.js could save 133B (37% reduction).
Compressing https://www.stem.org.uk/sites/all/themes/custom/st…te/icon-arrow-down.svg could save 221B (37% reduction).
Compressing https://www.stem.org.uk/sites/all/themes/custom/st…con-arrow-right-bg.svg could save 201B (39% reduction).
Compressing https://www.stem.org.uk/sites/default/files/js/js_…a3vd5eTo5xEO7dvCUZM.js could save 133B (37% reduction).
stem.org.uk Desktop Resource Breakdown
| Total Resources | 44 |
| Number of Hosts | 4 |
| Static Resources | 39 |
| JavaScript Resources | 8 |
| CSS Resources | 4 |
stem.org.uk mobile page speed rank
Last tested: 2019-02-01
Mobile Speed
Bad
59/100
stem.org.uk Mobile Speed Test Quick Summary
priority - 38Optimize images
Properly formatting and compressing images can save many bytes of data.
Optimize the following images to reduce their size by 369.8KiB (97% reduction).
Compressing and resizing https://www.stem.org.uk/sites/default/files/slider…gs%20slider%20item.png could save 98.5KiB (93% reduction).
Compressing and resizing https://www.stem.org.uk/sites/default/files/slider…earning%20Centre_0.jpg could save 67.9KiB (98% reduction).
Compressing and resizing https://www.stem.org.uk/sites/default/files/slider…on%20Award%20final.jpg could save 63.8KiB (98% reduction).
Compressing and resizing https://www.stem.org.uk/sites/default/files/slider…Science%20Teaching.jpg could save 54.7KiB (97% reduction).
Compressing and resizing https://www.stem.org.uk/sites/default/files/slider…ssion%20X%20mascot.jpg could save 44KiB (98% reduction).
Compressing and resizing https://www.stem.org.uk/sites/default/files/slider…k%202019%20%285%29.jpg could save 40.9KiB (96% reduction).
Compressing and resizing https://www.stem.org.uk/sites/default/files/slider…earning%20Centre_0.jpg could save 67.9KiB (98% reduction).
Compressing and resizing https://www.stem.org.uk/sites/default/files/slider…on%20Award%20final.jpg could save 63.8KiB (98% reduction).
Compressing and resizing https://www.stem.org.uk/sites/default/files/slider…Science%20Teaching.jpg could save 54.7KiB (97% reduction).
Compressing and resizing https://www.stem.org.uk/sites/default/files/slider…ssion%20X%20mascot.jpg could save 44KiB (98% reduction).
Compressing and resizing https://www.stem.org.uk/sites/default/files/slider…k%202019%20%285%29.jpg could save 40.9KiB (96% reduction).
priority - 32Eliminate render-blocking JavaScript and CSS in above-the-fold content
Your page has 6 blocking script resources and 4 blocking CSS resources. This causes a delay in rendering your page.
Remove render-blocking JavaScript:
https://www.stem.org.uk/sites/default/files/js/js_…t7Is3CRaFcqWuXJaFrM.js
https://www.stem.org.uk/sites/default/files/js/js_…7R_wG2apAswJoCUZY7I.js
https://www.stem.org.uk/sites/default/files/js/js_…a3vd5eTo5xEO7dvCUZM.js
https://www.stem.org.uk/sites/default/files/js/js_…ipL5VNAhLGSzbSWU5vo.js
https://www.stem.org.uk/sites/default/files/js/js_…_SurTijPI0bx4kZ2rjE.js
https://www.stem.org.uk/sites/all/themes/custom/st…/libs/modernizr.min.js
https://www.stem.org.uk/sites/default/files/js/js_…7R_wG2apAswJoCUZY7I.js
https://www.stem.org.uk/sites/default/files/js/js_…a3vd5eTo5xEO7dvCUZM.js
https://www.stem.org.uk/sites/default/files/js/js_…ipL5VNAhLGSzbSWU5vo.js
https://www.stem.org.uk/sites/default/files/js/js_…_SurTijPI0bx4kZ2rjE.js
https://www.stem.org.uk/sites/all/themes/custom/st…/libs/modernizr.min.js
Optimize CSS Delivery of the following:
https://www.stem.org.uk/sites/default/files/css/cs…Ai0WEMuCnI0ZkYIaFw.css
https://www.stem.org.uk/sites/default/files/css/cs…sbzVUzDjtIPkNTtqGU.css
https://www.stem.org.uk/sites/default/files/css/cs…8n86ON_A83nNbM2EYM.css
https://www.stem.org.uk/sites/default/files/css/cs…Ul9yU8UvqX7TUntjmE.css
https://www.stem.org.uk/sites/default/files/css/cs…sbzVUzDjtIPkNTtqGU.css
https://www.stem.org.uk/sites/default/files/css/cs…8n86ON_A83nNbM2EYM.css
https://www.stem.org.uk/sites/default/files/css/cs…Ul9yU8UvqX7TUntjmE.css
priority - 3Leverage browser caching
Setting an expiry date or a maximum age in the HTTP headers for static resources instructs the browser to load previously downloaded resources from local disk rather than over the network.
Leverage browser caching for the following cacheable resources:
https://www.stem.org.uk/sites/all/themes/custom/st…ts/fonts/Bliss2Bd.woff (expiration not specified)
https://www.stem.org.uk/sites/all/themes/custom/st…ts/fonts/Bliss2Lt.woff (expiration not specified)
https://www.stem.org.uk/sites/all/themes/custom/st…ts/fonts/Bliss2Rg.woff (expiration not specified)
https://www.google-analytics.com/analytics.js (2 hours)
https://www.stem.org.uk/sites/all/themes/custom/st…ts/fonts/Bliss2Lt.woff (expiration not specified)
https://www.stem.org.uk/sites/all/themes/custom/st…ts/fonts/Bliss2Rg.woff (expiration not specified)
https://www.google-analytics.com/analytics.js (2 hours)
priority - 1Minify JavaScript
Compacting JavaScript code can save many bytes of data and speed up downloading, parsing, and execution time.
Minify JavaScript for the following resources to reduce their size by 12.4KiB (22% reduction).
Minifying https://www.stem.org.uk/sites/default/files/js/js_…t7Is3CRaFcqWuXJaFrM.js could save 5.2KiB (14% reduction) after compression.
Minifying https://www.stem.org.uk/sites/default/files/js/js_…BVSDPchQfBQIa3FTQ4M.js could save 4.7KiB (36% reduction) after compression.
Minifying https://www.stem.org.uk/sites/default/files/js/js_…ipL5VNAhLGSzbSWU5vo.js could save 1.6KiB (44% reduction) after compression.
Minifying https://www.stem.org.uk/sites/default/files/js/js_…7R_wG2apAswJoCUZY7I.js could save 936B (69% reduction) after compression.
Minifying https://www.stem.org.uk/sites/default/files/js/js_…BVSDPchQfBQIa3FTQ4M.js could save 4.7KiB (36% reduction) after compression.
Minifying https://www.stem.org.uk/sites/default/files/js/js_…ipL5VNAhLGSzbSWU5vo.js could save 1.6KiB (44% reduction) after compression.
Minifying https://www.stem.org.uk/sites/default/files/js/js_…7R_wG2apAswJoCUZY7I.js could save 936B (69% reduction) after compression.
priority - 0Enable compression
Compressing resources with gzip or deflate can reduce the number of bytes sent over the network.
Enable compression for the following resources to reduce their transfer size by 926B (39% reduction).
Compressing https://www.stem.org.uk/sites/all/themes/custom/st…ocial-facebook-rev.svg could save 388B (45% reduction).
Compressing https://www.stem.org.uk/sites/all/themes/custom/st…te/icon-arrow-down.svg could save 221B (37% reduction).
Compressing https://www.stem.org.uk/sites/all/themes/custom/st…ts/img/site/search.svg could save 184B (34% reduction).
Compressing https://www.stem.org.uk/sites/default/files/js/js_…a3vd5eTo5xEO7dvCUZM.js could save 133B (37% reduction).
Compressing https://www.stem.org.uk/sites/all/themes/custom/st…te/icon-arrow-down.svg could save 221B (37% reduction).
Compressing https://www.stem.org.uk/sites/all/themes/custom/st…ts/img/site/search.svg could save 184B (34% reduction).
Compressing https://www.stem.org.uk/sites/default/files/js/js_…a3vd5eTo5xEO7dvCUZM.js could save 133B (37% reduction).
stem.org.uk Mobile Resource Breakdown
| Total Resources | 43 |
| Number of Hosts | 4 |
| Static Resources | 39 |
| JavaScript Resources | 8 |
| CSS Resources | 4 |
stem.org.uk mobile page usability
Last tested: 2019-02-01
Mobile Usability
Good
99/100
stem.org.uk Mobile Usability Test Quick Summary
priority - 0Size tap targets appropriately
Some of the links/buttons on your webpage may be too small for a user to easily tap on a touchscreen. Consider making these tap targets larger to provide a better user experience.
The following tap targets are close to other nearby tap targets and may need additional spacing around them.
The tap target
<a href="/cpd">CPD</a> is close to 1 other tap targets.The tap target
<a href="/about-us">About us</a> is close to 1 other tap targets.The tap target
<a href="/about-us/our-vision">Our vision</a> is close to 1 other tap targets.The tap target
<button type="button" class="agree-button">Accept cookies</button> is close to 1 other tap targets.stem.org.uk HTML validation
Errors
A document must not include more than one “meta” element with a “charset” attribute.
Line: 12 Column: 5 - 26
".../" /> <meta charset="utf-8"> <..."
".../" /> <meta charset="utf-8"> <..."
Bad value “cleartype” for attribute “http-equiv” on element “meta”.
Line: 14 Column: 5 - 46
"...1.0"> <meta http-equiv="cleartype" content="on"> <..."
"...1.0"> <meta http-equiv="cleartype" content="on"> <..."
A “meta” element with an “http-equiv” attribute whose value is “X-UA-Compatible” must have a “content” attribute with the value “IE=edge”.
Line: 15 Column: 5 - 66
"..."on"> <meta http-equiv="X-UA-Compatible" content="IE=edge,chrome=1"> <..."
"..."on"> <meta http-equiv="X-UA-Compatible" content="IE=edge,chrome=1"> <..."
Bogus comment.
Line: 37 Column: - 7
"..."all" /> <![endif]--> ..."
"..."all" /> <![endif]--> ..."
Bad value “” for attribute “name” on element “input”: Must not be empty.
Line: 65 Column: 11 - 150
"... <input class="ctools-use-ajax ctools-auto-submit-click form-submit" type="submit" id="edit-submit-search-sitewide" name="" value="Search" /> ..."
"... <input class="ctools-use-ajax ctools-auto-submit-click form-submit" type="submit" id="edit-submit-search-sitewide" name="" value="Search" /> ..."
Warnings
Consider avoiding viewport values that prevent users from resizing documents.
Line: 13 Column: 5 - 93
"...f-8"> <meta name="viewport" content="width=device-width, minimum-scale=1.0, maximum-scale=1.0"> <..."
"...f-8"> <meta name="viewport" content="width=device-width, minimum-scale=1.0, maximum-scale=1.0"> <..."
The document is not mappable to XML 1.0 due to two consecutive hyphens in a comment.
Line: 37 Column: - 15
"... <![endif]--> <script ..."
"... <![endif]--> <script ..."
The document is not mappable to XML 1.0 due to a trailing hyphen in a comment.
Line: 37 Column: - 16
"... <![endif]--> <script s..."
"... <![endif]--> <script s..."
The “banner” role is unnecessary for element “header”.
Line: 106 Column: 3 - 24
"...</div> <header role="banner"> <..."
"...</div> <header role="banner"> <..."
The “navigation” role is unnecessary for element “nav”.
Line: 120 Column: 1 - 23
"... <nav role="navigation"> ..."
"... <nav role="navigation"> ..."
The “main” role is unnecessary for element “main”.
Line: 136 Column: 3 - 20
"...ader> <main role="main"> ..."
"...ader> <main role="main"> ..."
The “contentinfo” role is unnecessary for element “footer”.
Line: 317 Column: 3 - 29
"...</main> <footer role="contentinfo"> ..."
"...</main> <footer role="contentinfo"> ..."
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stem.org.uk Ping
Ping is a computer network administration software utility used to test the reachability of a host on an Internet Protocol (IP) network. It measures the round-trip time for messages sent from the originating host to a destination computer that are echoed back to the source.
stem.org.uk TRACEROUTE
Traceroute is a computer network diagnostic tool for displaying the route (path) and measuring transit delays of packets across an Internet Protocol (IP) network. The history of the route is recorded as the round-trip times of the packets received from each successive host (remote node) in the route (path); the sum of the mean times in each hop is a measure of the total time spent to establish the connection. Traceroute proceeds unless all (three) sent packets are lost more than twice, then the connection is lost and the route cannot be evaluated.